Higher June 2024 Paper 2R Q19
19 Aviv goes on a cycle journey.
For the cycle journey
average speed = 19 km/h correct to the nearest whole number
time = 1.5 hours correct to one decimal place
Work out the upper bound for the distance Aviv travels.
Give your answer correct to 3 significant figures.
(3)
| Scheme | Marks |
|---|---|
| 18.5 or 19.5 or 1.45 or 1.55 | B1 |
| (distance =) 19.5 × 1.55 | M1 |
| Working not required, so correct answer scores full marks (unless from obvious incorrect working) Answer: 30.2 | A1 |
| (3) | |
| (3 marks) |
Notes
B1: for one correct bound
Allow \(19.4\dot{9}\) for 19.5
Allow \(1.54\dot{9}\) for 1.55
M1: for \(UB_s \times UB_t\)
where
\(19 \lt UB_s \leqslant 19.5\) and \(1.5 \lt UB_t \leqslant 1.55\)
A1: accept 30.225 or 30.23
answer must come from correct figures (19.5, 1.55)